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Finding the Fourth Proportional to 18,530.53, 27,795.62 and 8,007.98

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Solution

The fourth proportional to 18,530.53, 27,795.62 and 8,007.98 is: 12,011.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,530.53 : 27,795.62 = 8,007.98 : x
  2. Step 2: Convert to fraction form
    18,530.53/27,795.62 = 8,007.98/x
  3. Step 3: Cross multiply
    18,530.53x = 27,795.62 × 8,007.98
  4. Step 4: Simplify right side
    18,530.53x = 222,586,798.50
  5. Step 5: Solve for x
    x = 222,586,798.50/18,530.53
  6. Step 6: Final answer
    x = 12,011.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.